宽幅波形钢腹板PC组合箱梁桥动静载试验研究  

Dynamic and Static Load Test of PC Composite Box Girder Bridge with Wide Corrugated Steel Webs

作　　者：芦欣 LU Xin(Xinjiang Transportation Investment Co.,Ltd,Urumqi 830000,China)

机构地区：[1]新疆交投建设管理有限责任公司,乌鲁木齐市830000

出　　处：《北方交通》2021年第1期38-41,45,共5页Northern Communications

摘　　要：为了评定波形钢腹板PC组合箱梁桥的安全性及其整体性能,以一座(38+68+38)m的波纹钢腹板单箱双室连续箱梁桥为例,分别进行动静载试验,并采用迈达斯civil进行数值模拟,再把桥梁的实测挠度值、应变值和动力特性与有限元模型的理论值进行对比,结果表明:桥梁的实测挠度值和应变值均小于理论值,前3阶的实测自振频率大于理论值,桥梁整体工作性能完好。In order to evaluate the static and dynamic performance and safety of PC composite box girder bridge with corrugated steel webs,a(38+68+38)m continuous box girder bridge with corrugated steel webs and double chambers is taken as an example.The dynamic and static load tests are carried out respectively,and the numerical simulation is carried out by Midas civil.Then the measured deflection,strain and dynamic characteristics of the bridge are compared with the theoretical values of the finite element model.The measured deflection and strain of the bridge are less than the theoretical value,and the measured natural frequency of the first three steps is greater than the theoretical value,indicating that the overall performance of the bridge is good.

关 键 词：桥梁工程 波形钢腹板 预应力混凝土箱梁 荷载试验 数值模拟 

分 类 号：U441.2[建筑科学—桥梁与隧道工程]